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Data Structures</h2></td></tr>
<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">struct &#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="struct_x_v___vscaler__l2.html">XV_Vscaler_l2</a></td></tr>
<tr class="memdesc:"><td class="mdescLeft">&#160;</td><td class="mdescRight">V Scaler Layer 2 data.  <a href="struct_x_v___vscaler__l2.html#details">More...</a><br/></td></tr>
<tr class="separator:"><td class="memSeparator" colspan="2">&#160;</td></tr>
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Hw Configuration</h2></td></tr>
<tr><td class="ititle" colspan="2"><p><a class="anchor" id="amgrpe07496529b2051c7e9395499f7cf4d41"></a>The following constants define the scaler HW MAX configuration</p>
</td></tr>
<tr class="memitem:ga634308cd79520f1e01e0efd5d0be4af7"><td class="memItemLeft" align="right" valign="top">enum &#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__v__vscaler.html#ga634308cd79520f1e01e0efd5d0be4af7">XV_VSCALER_TYPE</a> </td></tr>
<tr class="memdesc:ga634308cd79520f1e01e0efd5d0be4af7"><td class="mdescLeft">&#160;</td><td class="mdescRight">This typedef eumerates the Scaler Type.  <a href="group__v__vscaler.html#ga634308cd79520f1e01e0efd5d0be4af7">More...</a><br/></td></tr>
<tr class="separator:ga634308cd79520f1e01e0efd5d0be4af7"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:gab89f0150cb75c41d7a6841ebcdd80d2d"><td class="memItemLeft" align="right" valign="top">enum &#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__v__vscaler.html#gab89f0150cb75c41d7a6841ebcdd80d2d">XV_VSCALER_TAPS</a> </td></tr>
<tr class="memdesc:gab89f0150cb75c41d7a6841ebcdd80d2d"><td class="mdescLeft">&#160;</td><td class="mdescRight">This typedef enumerates the supported taps.  <a href="group__v__vscaler.html#gab89f0150cb75c41d7a6841ebcdd80d2d">More...</a><br/></td></tr>
<tr class="separator:gab89f0150cb75c41d7a6841ebcdd80d2d"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ga6d77a50fbbe99bd1dd186ed1cf82deb3"><td class="memItemLeft" align="right" valign="top">int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__v__vscaler.html#ga6d77a50fbbe99bd1dd186ed1cf82deb3">XV_VScalerInitialize</a> (<a class="el" href="struct_x_v___vscaler__l2.html">XV_Vscaler_l2</a> *InstancePtr, u16 DeviceId)</td></tr>
<tr class="memdesc:ga6d77a50fbbe99bd1dd186ed1cf82deb3"><td class="mdescLeft">&#160;</td><td class="mdescRight">This function initializes the core instance.  <a href="#ga6d77a50fbbe99bd1dd186ed1cf82deb3">More...</a><br/></td></tr>
<tr class="separator:ga6d77a50fbbe99bd1dd186ed1cf82deb3"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ga18b042a9e8363a391ea0003cc3161fdd"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__v__vscaler.html#ga18b042a9e8363a391ea0003cc3161fdd">XV_VScalerStart</a> (<a class="el" href="struct_x_v___vscaler__l2.html">XV_Vscaler_l2</a> *InstancePtr)</td></tr>
<tr class="memdesc:ga18b042a9e8363a391ea0003cc3161fdd"><td class="mdescLeft">&#160;</td><td class="mdescRight">This function starts the vertical scaler core.  <a href="#ga18b042a9e8363a391ea0003cc3161fdd">More...</a><br/></td></tr>
<tr class="separator:ga18b042a9e8363a391ea0003cc3161fdd"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ga3e8283da952231832e4e222ad6e5db87"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__v__vscaler.html#ga3e8283da952231832e4e222ad6e5db87">XV_VScalerStop</a> (<a class="el" href="struct_x_v___vscaler__l2.html">XV_Vscaler_l2</a> *InstancePtr)</td></tr>
<tr class="memdesc:ga3e8283da952231832e4e222ad6e5db87"><td class="mdescLeft">&#160;</td><td class="mdescRight">This function stops the vertical scaler core.  <a href="#ga3e8283da952231832e4e222ad6e5db87">More...</a><br/></td></tr>
<tr class="separator:ga3e8283da952231832e4e222ad6e5db87"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ga225e5f5ea049a33007e01a0f3eed98f1"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__v__vscaler.html#ga225e5f5ea049a33007e01a0f3eed98f1">XV_VScalerLoadExtCoeff</a> (<a class="el" href="struct_x_v___vscaler__l2.html">XV_Vscaler_l2</a> *InstancePtr, u16 num_phases, u16 num_taps, const short *Coeff)</td></tr>
<tr class="memdesc:ga225e5f5ea049a33007e01a0f3eed98f1"><td class="mdescLeft">&#160;</td><td class="mdescRight">This function loads user defined filter coefficients in the scaler coefficient storage.  <a href="#ga225e5f5ea049a33007e01a0f3eed98f1">More...</a><br/></td></tr>
<tr class="separator:ga225e5f5ea049a33007e01a0f3eed98f1"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:gaa7b32a54f54e226389a3410ac2e3a669"><td class="memItemLeft" align="right" valign="top">int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__v__vscaler.html#gaa7b32a54f54e226389a3410ac2e3a669">XV_VScalerSetup</a> (<a class="el" href="struct_x_v___vscaler__l2.html">XV_Vscaler_l2</a> *InstancePtr, u32 WidthIn, u32 HeightIn, u32 HeightOut, u32 ColorFormat)</td></tr>
<tr class="memdesc:gaa7b32a54f54e226389a3410ac2e3a669"><td class="mdescLeft">&#160;</td><td class="mdescRight">This function configures the scaler core registers with the specified configuration parameters of the axi stream.  <a href="#gaa7b32a54f54e226389a3410ac2e3a669">More...</a><br/></td></tr>
<tr class="separator:gaa7b32a54f54e226389a3410ac2e3a669"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ga0aec7af5a1af5d07c6d769c0f54e73fd"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__v__vscaler.html#ga0aec7af5a1af5d07c6d769c0f54e73fd">XV_VScalerDbgReportStatus</a> (<a class="el" href="struct_x_v___vscaler__l2.html">XV_Vscaler_l2</a> *InstancePtr)</td></tr>
<tr class="memdesc:ga0aec7af5a1af5d07c6d769c0f54e73fd"><td class="mdescLeft">&#160;</td><td class="mdescRight">This function prints V Scaler status on the console.  <a href="#ga0aec7af5a1af5d07c6d769c0f54e73fd">More...</a><br/></td></tr>
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#define&#160;</td><td class="memItemRight" valign="bottom"><b>XV_VSCALER_MAX_V_TAPS</b>&#160;&#160;&#160;(12)</td></tr>
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<tr class="memitem:ga6ecc9ea49eb85340b25fdd362cd46ea8"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="ga6ecc9ea49eb85340b25fdd362cd46ea8"></a>
#define&#160;</td><td class="memItemRight" valign="bottom"><b>XV_VSCALER_MAX_V_PHASES</b>&#160;&#160;&#160;(64)</td></tr>
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<tr class="memitem:ga107d998fc1242f9c5a349d6c96351544"><td class="memItemLeft" align="right" valign="top">#define&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__v__vscaler.html#ga107d998fc1242f9c5a349d6c96351544">XV_VscalerIs420Enabled</a>(InstancePtr)&#160;&#160;&#160;((InstancePtr)-&gt;Vsc.Config.Is420Enabled)</td></tr>
<tr class="memdesc:ga107d998fc1242f9c5a349d6c96351544"><td class="mdescLeft">&#160;</td><td class="mdescRight">This macro checks if Vscaler instance is enabled for 4:2:0 processing.  <a href="#ga107d998fc1242f9c5a349d6c96351544">More...</a><br/></td></tr>
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<h2 class="groupheader">Macro Definition Documentation</h2>
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          <td class="memname">#define XV_VscalerIs420Enabled</td>
          <td>(</td>
          <td class="paramtype">&#160;</td>
          <td class="paramname">InstancePtr</td><td>)</td>
          <td>&#160;&#160;&#160;((InstancePtr)-&gt;Vsc.Config.Is420Enabled)</td>
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<p>This macro checks if Vscaler instance is enabled for 4:2:0 processing. </p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">InstancePtr</td><td>is pointer to Vscaler core layer 2</td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>Returns 1 if condition is TRUE or 0 if FALSE </dd></dl>

<p>Referenced by <a class="el" href="group__v__vscaler.html#ga0aec7af5a1af5d07c6d769c0f54e73fd">XV_VScalerDbgReportStatus()</a>, and <a class="el" href="group__v__vscaler.html#gaa7b32a54f54e226389a3410ac2e3a669">XV_VScalerSetup()</a>.</p>

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<h2 class="groupheader">Enumeration Type Documentation</h2>
<a class="anchor" id="gab89f0150cb75c41d7a6841ebcdd80d2d"></a>
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          <td class="memname">enum <a class="el" href="group__v__vscaler.html#gab89f0150cb75c41d7a6841ebcdd80d2d">XV_VSCALER_TAPS</a></td>
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<p>This typedef enumerates the supported taps. </p>

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          <td class="memname">enum <a class="el" href="group__v__vscaler.html#ga634308cd79520f1e01e0efd5d0be4af7">XV_VSCALER_TYPE</a></td>
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<p>This typedef eumerates the Scaler Type. </p>

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<h2 class="groupheader">Function Documentation</h2>
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          <td class="memname">void XV_VScalerDbgReportStatus </td>
          <td>(</td>
          <td class="paramtype"><a class="el" href="struct_x_v___vscaler__l2.html">XV_Vscaler_l2</a> *&#160;</td>
          <td class="paramname"><em>InstancePtr</em></td><td>)</td>
          <td></td>
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<p>This function prints V Scaler status on the console. </p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">InstancePtr</td><td>is the instance pointer to the core instance.</td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>None </dd></dl>

<p>References <a class="el" href="struct_x_v__vscaler___config.html#af6e93f96db0d7fdb7859bfdca31cb9e7">XV_vscaler_Config::BaseAddress</a>, <a class="el" href="struct_x_v__vscaler.html#a1622ea62ff6931a74737c9252f6cd7c1">XV_vscaler::Config</a>, <a class="el" href="struct_x_v__vscaler___config.html#a9c0520ce0ba587a6f02009e9d3ab5691">XV_vscaler_Config::NumTaps</a>, <a class="el" href="struct_x_v__vscaler___config.html#a84f5daf81cc174e2a20d3ea9a4ae057f">XV_vscaler_Config::PhaseShift</a>, <a class="el" href="struct_x_v__vscaler___config.html#a070117f0c68f5258af73fa0e6017e1a2">XV_vscaler_Config::ScalerType</a>, and <a class="el" href="group__v__vscaler.html#ga107d998fc1242f9c5a349d6c96351544">XV_VscalerIs420Enabled</a>.</p>

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          <td class="memname">int XV_VScalerInitialize </td>
          <td>(</td>
          <td class="paramtype"><a class="el" href="struct_x_v___vscaler__l2.html">XV_Vscaler_l2</a> *&#160;</td>
          <td class="paramname"><em>InstancePtr</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">u16&#160;</td>
          <td class="paramname"><em>DeviceId</em>&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td></td>
        </tr>
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<p>This function initializes the core instance. </p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">InstancePtr</td><td>is a pointer to core instance to be worked upon </td></tr>
    <tr><td class="paramname">DeviceId</td><td>is instance id of the core</td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>XST_SUCCESS if device is found and initialized XST_DEVICE_NOT_FOUND if device is not found </dd></dl>

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          <td class="memname">void XV_VScalerLoadExtCoeff </td>
          <td>(</td>
          <td class="paramtype"><a class="el" href="struct_x_v___vscaler__l2.html">XV_Vscaler_l2</a> *&#160;</td>
          <td class="paramname"><em>InstancePtr</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">u16&#160;</td>
          <td class="paramname"><em>num_phases</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">u16&#160;</td>
          <td class="paramname"><em>num_taps</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">const short *&#160;</td>
          <td class="paramname"><em>Coeff</em>&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td></td>
        </tr>
      </table>
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<p>This function loads user defined filter coefficients in the scaler coefficient storage. </p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">InstancePtr</td><td>is a pointer to the core instance to be worked on. </td></tr>
    <tr><td class="paramname">num_phases</td><td>is the number of phases in coefficient table </td></tr>
    <tr><td class="paramname">num_taps</td><td>is the number of taps in coefficient table </td></tr>
    <tr><td class="paramname">Coeff</td><td>is a pointer to user defined filter coefficients table</td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>None </dd></dl>

<p>References <a class="el" href="struct_x_v__vscaler.html#a1622ea62ff6931a74737c9252f6cd7c1">XV_vscaler::Config</a>, and <a class="el" href="struct_x_v__vscaler___config.html#a84f5daf81cc174e2a20d3ea9a4ae057f">XV_vscaler_Config::PhaseShift</a>.</p>

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          <td class="memname">int XV_VScalerSetup </td>
          <td>(</td>
          <td class="paramtype"><a class="el" href="struct_x_v___vscaler__l2.html">XV_Vscaler_l2</a> *&#160;</td>
          <td class="paramname"><em>InstancePtr</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">u32&#160;</td>
          <td class="paramname"><em>WidthIn</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">u32&#160;</td>
          <td class="paramname"><em>HeightIn</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">u32&#160;</td>
          <td class="paramname"><em>HeightOut</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">u32&#160;</td>
          <td class="paramname"><em>ColorFormat</em>&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td></td>
        </tr>
      </table>
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<p>This function configures the scaler core registers with the specified configuration parameters of the axi stream. </p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">InstancePtr</td><td>is a pointer to the core instance to be worked on. </td></tr>
    <tr><td class="paramname">WidthIn</td><td>is the input stream width </td></tr>
    <tr><td class="paramname">HeightIn</td><td>is the input stream height </td></tr>
    <tr><td class="paramname">HeightOut</td><td>is the output stream height </td></tr>
    <tr><td class="paramname">ColorFormat</td><td>is the color format of the stream</td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>None </dd></dl>

<p>References <a class="el" href="struct_x_v__vscaler.html#a1622ea62ff6931a74737c9252f6cd7c1">XV_vscaler::Config</a>, <a class="el" href="struct_x_v__vscaler___config.html#a4d7efc84f5dd8b881fcc5180065a9207">XV_vscaler_Config::PixPerClk</a>, <a class="el" href="struct_x_v__vscaler___config.html#a070117f0c68f5258af73fa0e6017e1a2">XV_vscaler_Config::ScalerType</a>, and <a class="el" href="group__v__vscaler.html#ga107d998fc1242f9c5a349d6c96351544">XV_VscalerIs420Enabled</a>.</p>

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          <td class="memname">void XV_VScalerStart </td>
          <td>(</td>
          <td class="paramtype"><a class="el" href="struct_x_v___vscaler__l2.html">XV_Vscaler_l2</a> *&#160;</td>
          <td class="paramname"><em>InstancePtr</em></td><td>)</td>
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<p>This function starts the vertical scaler core. </p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">InstancePtr</td><td>is a pointer to the core instance to be worked on.</td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>None </dd></dl>

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          <td class="memname">void XV_VScalerStop </td>
          <td>(</td>
          <td class="paramtype"><a class="el" href="struct_x_v___vscaler__l2.html">XV_Vscaler_l2</a> *&#160;</td>
          <td class="paramname"><em>InstancePtr</em></td><td>)</td>
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<p>This function stops the vertical scaler core. </p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">InstancePtr</td><td>is a pointer to the core instance to be worked on.</td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>None </dd></dl>

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